baber/WOPTO huggingface dataset:
Patent GB-348125-A (GB)
Title: Improvements in aircraft
IPC: B64C29/00
Filed: 1929-11-08
Abstract: 348,125. Supporting and controlling aircraft; screw propellers. WOOD, C. A. W., 4, Dumayne Avenue, Kidderpore, Calcutta, India. Nov. 8, 1929, No. 34199. [Classes 4 and 114.] An aeroplane fitted with adjustable sustaining surfaces capable of being set at angles of incidence greater than the normal is provided with means adapted to be intruded into the path of the slip. stream close behind the propeller to intercept part of the stream. A monoplane, Fig. 1, is fitted with adjustable pockets 1 normally nested against the nose of the body 2 behind the airscrew 3 but capable of being opened to the position shown, simultaneous adjustment of the wing 4 to the position shown in dotted lines being stated to result in vertical flight with the airscrew running at or near its full rate of revolution. The pockets 1, Fig. 8, are hinged to the body at 6 and are connected at points 8 to endless wires 7 running over pulleys 9 and a drum 11 which can be rotated by the pilot through the gearing shown. Locking means for the adjusting gears are provided. The monoplane wing is pivoted about an axis 27, Fig. 5, at or near its centre of pressure and is adjusted by means of a frame 26 connected to an endless cable 21 running over pulleys 22 and rotated by the pilot through the lever and shaft system shown. Fig. 7 shows the means for adjusting biplane wings of which the upper is pivoted at or near its centre of pressure and the lower near to its trailing edge. According to modifications a separate pivoted sustaining surface independent of the main wings may be that to be acted on by the slipstream. More than one set of adjustable pockets may be fitted and the invention may be applied to multi-engined aircraft. Planes of low aspect ratio may be fitted. The airscrew may have forwardly bent tips as shown in Fig. 1.
Patent GB-393333-A (GB)
Title: Improvements in or relating to non-slip surfaces for paving blocks
IPC: E01C5/16
Filed: 1931-12-10
Abstract: 393,333. Treads ; paving-blocks. SMALL, F. G., 2, Meadow Road, Pinner, Middlesex. Dec. 10, 1931, No. 34267. [Classes 20 (iv) and 87 (i).] A paving-block, such as the metallic block shown, has on its upper surface projections of different heights. The higher projections d may be symmetrically arranged on the block with respect to the lower ones. As shown, the higher projections d may be arranged in one or more groups. They may also be arranged so that on a surface covered with the blocks the higher projections may occur in uniformly distributed groups or in staggered relationship. According to the Provisional Specification, the invention is also applicable to other metallic paving surfaces.
Patent GB-913408-A (GB)
Title: Replaceable working tip for rippers and other earth-working machines
IPC: E02F9/28
Filed: 1961-09-26
Abstract: 913,408. Ripper teeth. CATERPILLAR TRACTOR CO. Sept. 26, 1961 [Oct. 27, 1960], No. 34399/61. Class 107. [Also in Group XXI] A replaceable ripper tooth comprises a hardened working blade 12 hvaing flanges 18 to provide a U-shaped cross-section at the rearward part and a housing part of similar cross-section so that the blade and housing part may be welded together at 14 along the abutting surfaces of the flanges to form a tapered socket adapted to fit over a tooth-carrying shank.
Patent GB-1101017-A (GB)
Title: Laser
IPC: H01S3/30
Filed: 1966-08-01
Abstract: 1,101,017. Lasers. HUGHES AIRCRAFT CO. 1 Aug., 1966 [13 Aug., 1965], No. 34443/66. Heading H1C. A laser active medium consists of potassium caesium or rubidium vapour which is double quantum pumped to produce saturation of the absorption transition by incident radiation at each of two frequencies W L , W s , the resonant double quantum pumping being effected by a pumping laser which operates in association with a Raman active material, and the two pumping frequencies being such that the energy level separation #E of the active medium is equal to hW L +hW s . As shown in Fig. 2, pumping radiation of frequency W L  is generated by a tuned giant-pulse ruby or neodymium laser 31 which interacts with a Raman active material 35 contained in a cell 37 to produce stimulated Raman emission 39 of lower frequency W s  in addition to propagating the laser radiation 33. For pumping a potassium vapour laser, the Stokes emission W S  from the Raman cell raises the level of energy from the ground state to the 4p<SP>3</SP>/ 2  intermediate level, while the absorption transition from the intermediate level to the 68¢ level is completed by the pumping laser emission W L , Fig. 3 (not shown). Emission of the required frequency W L  from a ruby laser is obtained at an operating temperature of about- 40‹ C., and a suitable Raman material for emitting frequency W S  may be 1-Bromonaphthalene. Other suitable Raman materials are described. The pumped vapour laser is sufficiently tuned by using the reflectivity of the end windows and emits radiation in the infra red.
Patent GB-763255-A (GB)
Title: Improvements in or relating to kettles
IPC: A47J27/21
Filed: 1953-12-10
Abstract: 763,255. Kettles. MEDWAY & CO., Ltd., A. E., and CHIGNALL, J. H. March 10, 1955 [Dec. 10, 1953], No. 34472/53. Class 66. A kettle of the kind which is filled through the spout 11 comprises a cover 17 for the spout, carried by a lever 18 pivoted at 19 to the handle 12 of the kettle, a thumb lever 25, 29 pivoted at 28 to the handle, a compression spring 32 located within the handle and abutting between the handle and the thumb lever and a link 22 between the levers 18, 25 on the side of the pivot 19 of the lever 18 remote from the cover. Part 33 of the member 25, 29 projects from a slot 27 in the handle in which it is set and depression of this part 33 against the spring 32 lifts the cover 17 from the spout 11.
Patent GB-413284-A (GB)
Title: Improvements in or relating to distributing divided materials in uniform layers on a travelling surface for forming coated sheet material
IPC: B29D99/00
Filed: 1932-12-06
Abstract: 413,284. Coated fabrics. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, MADGE, E. W., and PAYNE, F. J., Fort Dunlop, Birmingham. Dec. 6, 1932, No. 34521. [Class 140.] In a method of forming coated sheet material involving the distribution of comminuted material to a given depth on a travelling adhesive-coated backing by the action of pins or spikes which comb the surface in succession, some of the pins or spikes are stationary relative to the point where the material is fed and others are carried round in a circular path about an axis transverse to the travelling surface. Comminuted material 6 is spread to a uniform layer on a textile or other backing 1 which has been coated with adhesive by a roller-andtrough apparatus 2, by passing the backing over a table 5 and successively beneath a feed control 7 in the form of a fixed, straight-edged plate or a fixed row of pins or spikes, a rotating shaft 8 set with pins or spikes 8<a>, a fixed bar 9 set with pins &c. 9<a>, and a rotating shaft 10 with pins &c. 10<a>. The pins on the shafts and bar members are arranged in longitudinal rows, the pins in one row being staggered in relation to the next. The distribution or length of the pins may be varied across the shafts &c. to produce furrows in the coating. Adjustable side shields 19, spaced from the table 5 to allow the backing to pass beneath, are provided to limit the sideways distribution of the material. The comminuted material may consist of disintegrated rubber, rubberized fabric, sponge rubber, or other rubber scrap, or of ground cork, and may be dry or wetted, for example with an aqueous rubber dispersion. The uniformly coated fabric may be heated, for example within a hood 11, to vulcanize the rubber, or may be passed through consolidating rollers. The Provisional Specification is not restricted to the production of coated sheet material, and describes the production of rubber &c. sheeting.
Patent GB-663040-A (GB)
Title: Improvements in and relating to presses for producing compacts from pulverulent materials
IPC: B22F3/03
Filed: 1947-12-29
Abstract: 663,040. Moulding powdered material. PRIMAVESI, D. Dec. 29, 1947 [Dec. 4, 1946], No. 34534/47. Class 87(ii) Apparatus for compressing powdered material, e.g. powdered metal, comprises a die 1 movable relatively to a platen 10, an upper pressing ram 5 and a lower ram comprising a number of ram members 12, 13, 14 movable relative to each other. As shown one member 12 is fixed to the platen, which is stationary, and two members 13, 14 are vertically slidable in the platen and may be urged downwards by springs 19. The die 1 is carried on rods 8 sliding in the platen 10 and secured to a cross piece 9 which is moved up and down by a shaft 11 connected to the press operating mechanism. In Fig. 8 the die 1 and ram members 13, 14 are in their uppermost positions, the ram members being urged upwardly by the crosspiece 9 and limiting the upward movement of the die. The die is charged with powder and the upper ram 5 brought down, forcing down the ram members 13 and 14 until shoulders 25, 26 thereon engage horizontally slidable stops 20, 21 on the platen 10, the die also moving down. Pressure on the ram 5 is then relieved until it is reduced to that exerted by a spring 6 interposed between the ram 5 and its operating mechanism. The die 1 is then moved down to clear the moulded article by means of the cross piece 9, inclined projections 23 on the rods 8 engaging rollers 24 to move the stops 20, 21 against springs 22 from beneath the ram members 13, 14. The ram members are then moved down by the springs 19 and/or by the die 1 engaging the shoulders 25, 26, to clear the moulded article, Fig. 10. The ram 5 is then completely withdrawn and the article removed. Movement of the cross piece 9 upwards restores the Fig. 8 position. 'The arrangement is such that no lower ram member is moved down until the whole of the article above that member is relieved of side pressure from the die. Means are provided for adjusting the initial positions of the lower ram members and the die. Both upper and lower rams may be subdivided into ram-members. The die 1 may be stationary and the platen 10 movable, together with its attachments, or both die and platen may be movable to obtain the required relative motion thereof. Specifications 589,863 and 610,011 are referred to. The Specification as open to inspection under Sect. 91 states that the die may be in more than one part, the parts being movable sideways to release the lateral pressure on the moulded article. This subject-matter does not appear in the Specification as accepted.
Patent GB-1466859-A (GB)
Title: Manufacture of footwear
IPC: A43B9/10
Filed: 1973-07-19
Abstract: 1466859 Boots &c CLARKS Ltd 25 June 1974 [18 July 1973] 34541/73 Heading A3B An article of footwear includes a moulded sole unit 10 which has at its outer upper edge a laterally outwardly projecting flange 11 extending about the full length of the periphery of the unit so as to form a laterally facing rebate beneath the flange, the lower edge portion 16 of an upper 14 being turned outwardly and secured to the upper surface of the flange. The unit 10 may be located in a platform 12 which is mounted on a jack in a lasting machine. The upper 14, disposed about a last 15, is lasted to the sole unit, the edge 16 being temporarily secured to the flange 11, e.g. by staples or adhesive. After permanently securing by stitching, the edges of the margin and flange are trimmed. A sock 17 covering the top surface of the sole unit may be sewn in position between the edge 16 and the flange 11. The sole unit may be moulded from polyurethane as a wedge heel, as shown, its outer surfaces having a leather grain effect.
Patent GB-821989-A (GB)
Title: Urinary estrogen compositions and methods for preparing them
Inventor: BEALL DESMOND
IPC: A61K38/22
Filed: 1957-11-06
Abstract: Sulphates of estrone, equilenin, equilin, b -estradiol, a - and b -dihydroequilenin are prepared from pregnant mares' urine by preparing a concentrate which is dissolved in an aqueous medium and salted out with an inorganic salt, e.g. sodium and potassium salts of sulphuric, phosphoric or hydrochloric acid.ALSO:Estrogen compositions which may be administered orally, topically or by intra-venous injection, are prepared from pregnant mares' urine by preparing a concentrate which is dissolved in an aqueous medium and salting out the solution with an inorganic salt, removing the precipitate and separating the estrogens from inorganic salt therein.  Specified inorganic salts are the alkali metal, preferably sodium and potassium, salts of sulphuric, phosphoric or hydrochloric acids.  The precipitate may be extracted with an aliphatic ketone, such as acetone or methyl ethyl ketone, containing a small amount of an alcohol, such as methanol, ethanol, isopropanol or butanol.  Finally water may be added to the solution and the product concentrated so as to remove solvent leaving a concentrated aqueous solution.  Buffers (many specified) may be added to maintain pH 6.5-7.5.  Specified carriers and drying agents are dextrose, galactose, pectin, gelatine, dextran, polyvinylpyrrolidone and preferably lactose. Specified estrogens present are the sulphates of estrone, equilin, equilenin, b -estradiol, a - and b -dihydroequilenin.
Patent GB-620583-A (GB)
Title: Improvements in or relating to ultra high frequency electrical transmission systems
IPC: H01P5/18
Filed: 1945-12-21
Abstract: 620,583. Power meters. PHILCO RADIO & TELEVISION CORPORATION. Dec. 21, 1945, No. 34712. Convention date, Aug. 15, 1944. [Class 37] [Also in Group XL (c)] Fig. 1 shows a directive coupling between rectangular wave-guides 11, 12 superposed at right angles on their broad faces. Slots 21, 22 cut in the contiguous faces of the guides intersect at a point 15 where the longitudinal and transverse currents are equal. These currents are phase displaced by 90 degrees, the sense of the displacement corresponding to the direction of propagation along the guide. Thus, energy propagated along guide 11 will produce at 15 a circularly polarized wave which is radiated through slots 21, 22 into guide 12 where it produces a unidirectional wave which is propagated along guide 12 in a direction which depends on the direction of propagation in guide 11. Thus, if guide 11 is feeding a load and there is some reflected energy, the reflected energy will produce a wave in one direction in guide 12, and the direct energy will produce a wave in the opposite direction. With a good absorbing wattmeter at one end of guide 12 and an absorbing termination at the other end, the direct or the reflected energy may be measured, since the unit comprising the crossed guides may be connected in either sense in guide 11. Fig. 2 shows a unidirectional coupling for coaxial lines. A coaxial line 32, 33 has a closed branch stub 36, 37 on which is a machined flat surface 44 in which are cut slots 45, 46 at a position where the longitudinal and transverse currents are equal and phase displaced by 90 degrees. Thus, if a similar unit is superposed at right angles so that the pairs of intersecting slots are in contact, a wave is generated in the second coaxial line having a direction of propagation dependent on that in the coaxial line 32, 33. The apparatus may be used for measuring the power in one direction in a coaxial line. Specification 592,224 is referred to.
Patent GB-1308211-A (GB)
Title: Catalyst and process for polymerizing olefins
IPC: C08F4/24
Filed: 1970-07-17
Abstract: 1308211 Polymerization of α-olefins CHISSO CORP 17 July 1970 [1 Aug 1969] 34781/70 Heading C3P A catalyst precursor for the polymerization of α-olefins or styrene comprises the solid reaction product of a metal oxide or mixed oxide, B 2 O 3 , or silica, and a metal trihalide with a transition metal compound which is a halide of oxyhalide of a Group IVa or Va metal, the reaction being carried out in the presence of an aromatic compound. Suitable trihalides include AlCl 3 , AlBr 3  and FeCl 3  and the preferred transition metal compounds are TiCl 4 , VCl 4  and VOCl 3 . The catalyst is prepared by activating the precursor with an organo-aluminium compound and polymerization may be carried out also in the presence of a titanium alkoxide and/or hydrogen to control the density and molecular weight of the product. The examples describe the polymerization of (1)-(19), (24), (25) ethylene (20) propylene (21) butene-1 (22) ethylene and propylene (23) ethylene and butene- 1 and (26) ethylene and styrene, using as the oxide MgO, CaO, ZnO, Al 2 O 3 , SiO 2 , ZrO 2 , V 2 O 5 , CrO, Mn 3 O 4 , Fe 3 O 4 , Co 3 O 4 , NiO or MgAl 2 O 4  (spinel), as the aromatic compound benzene, xylene, chlorobenzene, o-chlorotoluene, anisole or dimethylaniline and as the activating component AlEt 3  or AlEt 2 Cl.
Patent GB-1468445-A (GB)
Title: Lid mounting hinge and counterbalance mechanism
IPC: E05F1/12
Filed: 1974-08-07
Abstract: 1468445 Counterbalance hinge mechanism WEBER KNAPP CO 7 Aug 1974 [7 Dec 1973] 34809/74 Headings E2F and E2M In a counterbalance hinge mechanism of the type in which two attachment brackets 20, 22 are joined by hinge pin 24 and a spring 36 acts between bracket 22 and a member 26 mounted via pivot means 34 to the bracket 20, the means 34 comprises two pins which extend from the bracket 20 (or the member 26) and can engage recesses 60a, 60b inside an aperture 60 in the member 26 (or the bracket 20); both recesses being engaged in an intermediate position (Fig. 3) of the hinge, pin 62 engaging recess 60a on the closing side of this position (Fig. 1) and pin 64 engaging recess 60b on the opening side of the position (Fig. 4), causing the spring to oppose any movement of the hinge away from the intermediate position. As shown a lid 12 is pivoted to a frame member 14 and the mechanism counterbalances the tendency of the lid to fall towards the open or closed position when displaced from the intermediate position of Fig. 3. The spring 36 acts between the lower end 28 of the member 26 and an upper member 38 which is secured on a rod 40 extending from a plate 42 engaged on bracket 22. A friction braking device 44 includ-. ing resiliently deformable friction material 50 is positioned between the spring and the lower end 28 and acts on the rod 40. Alternatively the pins 62, 64 can extend from the member 26 into recesses provided in the bracket 20. The mechanism can be used in arrangements in which the lid weight always acts in a closing direction, by arranging the intermediate position adjacent the fully open position.
Patent GB-176518-A (GB)
Title: Improvements in or relating to devices for launching parachutes from aircraft
IPC: B64D17/00
Filed: 1920-12-09
Abstract: 176,518. Schollar, P. W., and Calthrop's Aerial Patents, Ltd., E. R. Dec. 9, 1920. Parachutes.-Members of a number of twopart devices are connected to separate parachutes and are accessible one at a time for connection to a corresponding member on each aviator's harness. The parachutes are housed in recesses in the exterior of the fuselage of an aeroplane or the envelope or car body of an airship, and are each covered with fabric which is stripped off when the load is applied to the load rope. Each rope is also covered with a stripping-piece to preserve it from the weather and to prevent flogging, and is connected to a member C of the two-part device. The members C are held in spring jaws H on a rack J fixed outside a door, which opens on hinges on its lower edge and is provided with an extension which covers the rack in its closed position. When an aviator has inserted his connecting-member into the top member C and left the aircraft, a guard-plate K is forced down by a spring N until the tongue L contacts with the next member C, which is then available for the next aviator. The guard-plate K is guided by a fin sliding in a groove Q which may be cut away at R so that the ground-plate can be turned angularly for inspection of all the members C.
Patent GB-904862-A (GB)
Title: Process for the catalytic pressure refining of crude benzene
Inventor: SATTLER EMIL
IPC: C07C7/163
Filed: 1962-04-12
Abstract: In the refining of crude benzene by contact with a hydrogen-containing gas (other than pure hydrogen) and a hydrogenation catalyst, the hydrogen-containing gas is compressed to a hydrogen partial pressure equal to the reaction pressure required using pure hydrogen, expanding at least part of the gas separated from the refined benzene and using in the compression the work obtained in the expansion and using in the expansion the heat produced by the compression.  The expansion and compression may be connected by using two connected machines or a single machine with connected expansion and compression cylinders.  The refining is effected at 320-420 DEG C. and 40-50 atmospheres of hydrogen in the presence of oxides or sulphides of metals of Group 5, 6 or 8 supported on ceramic carriers.
Patent GB-646176-A (GB)
Title: Improvements in spring coiling machines
IPC: B21F3/06
Filed: 1947-12-31
Abstract: 646,176. Coiling; shearing. MERCER, G. H., and LABAN, W. H. Dec. 31, 1947, No. 34927. [Class 83 (iv)] In making coiled wire springs, diameter and pitch controlling devices are automatically operated according to a preset law variable, to produce different spring shapes, by adjusting the amplitude of the diameter and/ or pitch device movements and/or their speeds and phase relative to the wire feed speed. Wire 17 is drawn through unstraightening rolls 10 by sprung feed rolls 15, 16 and passes under a hold-down guide 59, over a fixed roller 28 and against the diameter controlling roller 26 where it is coiled and spaced by a tapered pitchsetting blade 30. An adjustably-fixed abutment 122 bends the leading wire end to ensure engagement below the roller 26. Movements for producing hour-glass &c. shapes are transmitted to the roll 26 by pivoting its mounting 24 through an adjustable length rod 36, and a slotted sprung link 37 from a cam 38 on a shaft 64. The movement amplitude and limit positions are varied by screw-shifting the pivot 44 of the link 37 along a scale 125 by a handle 48 and by altering the rod length through a screw 119, and/or by adjusting a fixed stop 126 for the link 37 to limit the cam engagement. The pitch blade 30 moves laterally and is operated and varied by similar mechanism driven from a further cam on the shaft 64, Fig. 2, not shown. The phase of the. diameter and pitch control movements is relatively adjusted by rotating the operating cams 38 &c. on the shaft 64. The feed roll shafts 81, Fig. 4, are variable-speed belt-driven from a motor pulley 74 and the relatively variable-speed cam-shaft 64 is driven through belting 84 and change-speed gearing 95 operated by an external handle for shifting the phase of the operations. Shearing. A support 57 is raised against the guide 59 to shear the wire 17 against an adjustably-fixed blade 61 by a rod 56 crank-operated from a further cam on the shaft 64. The feed is stopped during shearing by lifting the bearing housing of the upper roll, Fig. 5, not shown, through a crank driven by a further cam on the shaft 64. The feed rolls 15, 16 have several profiled passes to suit the wire size and the roller 26 is mounted on a ball-and-socket support, Fig. 7, not shown, for alignment with the wire helix-angle. A fly wheel arrangement for preventing shear blade shock is described in Specification 646,177.